APA (7th ed.) Zitazioa
Nelson-Jones, R. (2012). Basic counselling skills: A helper's manual (3rd ed.). Sage.
Chicago Style (17th ed.) Zitazioa
Nelson-Jones, Richard. Basic Counselling Skills: A Helper's Manual. 3rd ed. Los Angeles: Sage, 2012.
MLA (9th ed.) Zitazioa
Nelson-Jones, Richard. Basic Counselling Skills: A Helper's Manual. 3rd ed. Sage, 2012.
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